A new moment-resisting precast concrete beam and column joint(PC beam-column joint) system using untensioned strand was developed in this study, mainly for the use in underground parking lot in which the influences of the seismic load may be neglected. For the evaluation of the structural performance of this new system, two types of the specimens were tested. The first one is to investigate the behavior of the beams reinforced by the deformed bars and the wire strands in combination. As a test parameter, it was selected whether the wire strand is tensioned or not. The test results showed that the flexural capacities of all specimens were sufficient and the decrease of deflection owing to the prestressing is not large. Secondly, the structural performance of this joint system under the cyclic loading was investigated. Two specimens differentiated by the type of the penetrating reinforcement through the PC column (deformed bar or wire strands) were tested. The results showed that this joint system has satisfactory strength and stiffness and ductility. The study concluded that the new precast concrete beam and column joint system has the structural performance satisfying the requirements.
노삼영, 조민주, 김형근, 정재천, "비인장 강연선을 사용한 접합부 일체형 PC 보-기둥 시스템의 휨성능 평가", 대한건축학회논문집 27권 1호, 2011, pp. 51-58
대한건축학회(2008), 콘크리트구조설계기준
Branson D.E., "Instantaneous and Time-Dependent Deflections of Simple and Continuos Reinforced Concrete Beams," HPR Report, No. 7 Part 1, Alabama Highway Department/U.S. Bureau of Public Roads, 1963/1965, 78pp
T. Paulay and M.J.N. Priestley, Seismic design of reinforced concrete and masonry buildings by Wiley, New York, 1992, 744pp
ACI Commitee 318, Building Code Requirement for Structural Concrete(ACI 318-08), Farmington Hills, Michigan, 2008, pp. 8-3
ACI T1.1R-01 "Commentary on Acceptance Criteria for Moment Frames Based on Structural Testing"